Submarine and auxiliary boat therefor



4 Sheets-Sheet l z i f 1, .mum /M m is E. J. SHOEMAKER SUBMARINE AND AUXILIARY BOAT lTHEREFOR Filed Feb.4 '7, 1928 Nov. ll, 1930.

l 11,1.vili',lIlIlllllnnlllllllllllllllla 111111111111111'.

Nov. 1l, 1930. E. J. sHoEMAKER y SUBMARINE ANB AUXILIARY BOAT` THEREFOR Filed Feb. 7, 1928 4 Sheets-Sheet 2 Nov.v l1, 1930. E. J. SHOE-:MAKER 1,781,134

SUBMARINE AND AUXILARY BOAT THEREFOR Nov. 11, 1930. E J SHOEMAKER 1,781,134

SUBMARINE AND AUXILIARY BOAT THEREFOR Filed Feb. 7, 1928 4 Sheets-Sheet 4 atroz H4114 .Il i) j; il

Patented Nov. 1.71, 1930 UNITED STATES .PATENT orricn EDWARD J. .enormen-rn, .or eenmon, 01H10 snniunninn nim nUXiLiAnY BOAT rrinnrrr'on'VV Application filed 'February 7', '1928'. -Serial No. 252,469.

ytire:surface or submerged, by being navigated away irony/the submarine Aitor tlie purpose of .accomplishing its inission which may be for enainple .surface sconti-ng or making a landiiio .on eneniy territory, and by being navigated `baclrnto-and 'resec-.ured in fits dock-in the submarine.

rSucii :an :auxiliary boat should also be adapte-d to be occupied by tlie commanding oit-licei' .oi thesiibinari-ne While the submarine is nbnierged, to'be Lreleased Afrom its dock,to

' .corne tothe surface, to be physically connected -ivitli tliesubniarine :in .such a manner =`Jthat 'ii-lie ,commanding oiiicer may inalre lobserva- "p-a-ntinentsioi thesubnierged and disabledsnbmariie are not flooded, the auxiliary'boat should :also be `adapte-d ltor use in prio-ridingl for :these compaitnaentsa supply of fresh air and .,cenrpressed'lair for snstaiii'ing life .and

fpreuent'ing floodinv.

@functioning in the abone .described `rnanner and the obyeetsfof the :Desent inyentionin- '.cilfucle atlie provision of a submarine and :an

.'unctioninfr. asA aforesaid.

111; .Auxiliary boats which have heretofore been suggested bane not been capable of Further-objects :ofthe present improvenients include the provision .of a novel subinarine and: auxiliary boat ,as aforesaid, and in which the cooperating parts thereof areso leonstructed .and arranged as `to render .their y operation certainandeffectiye. The improvements lcomprising the present invention include accordingly yconstruetio'ns Vandarrangeinents for a submarine and auxiliary boat .adapted for vattaining the foregoing and ancillary obj.e.cts,fand further include A details of construction `of they cooperating partstliereof.

A preferred l:einbodiiiient of these iniprove- .ments is hereinafter set `iorth in detail, ,and is 'illustrated in: the accompanying drawings ornii-ngpart hereo, in whicliv Y A Figure l is a top plan View illustrating a submarine and @one of vthe improved `auxiliary boats docked therein; l p

Fig. 2, an elevation .View .With portions in section illustrating the auXiliar-yboat about to .be ldocked the submarine, v

Fig. `3, a .fragmentary ,top plan View illus- Y trating an .improved bumper Yfor use in-doclring the auxiliaryboat.;

Fig. 4, a raginentarysectional View thereofias on line #4, Fig;

Fig. 5, an enlarged fragmentaryyiewsimilai'to Figl; f

6, ,a Araginentary sectional .View thereoi longitudinal :of thefauxiliaryboat as on line 6 6, Fig. Y5, ,the auiriliaryboat and coyoperating Aapparatus .in-v the subinarine .being illustrated. in side eleyation; y y

Fig. 7, a transverse fragmentary sectional View thereof .as online '7v-7.,Fig. 5 the auxiliary boat vandcooperating .apparatus :in .the submarine being illustrated in end .elevatiom K Fig. f8, an enlarged transyerse Afragmentary I A.sec/ tional View of the submarine and `the Aauxiliary boat, .as on line'S-LSEi-g. Gand F -F-ig. 9, a Sinai-lar rView as line S-9., Fig.` Grand Fig. ll; Fig. 10, a similar "fragmentary transverse :sectional View illustrating-a- Water :byepass in the .auxiliary boat g `.anni raiyboat associ-ated .Witheacli other .for I Fig. l1, an V,enlarged tragrnentary sectional "of being broken away; f Y

Fig. 15, a transversesectional'view thereofv connecting appara-tus in the lsubmarine are illustrated in section; p f

F ig; 12, afragmentary end elevationthereof as on line 12-'-12,F ig.-11;

Fig. 13, a fragmentary sectional view thereof as online 13-13, Fig. 11; n

Fig.g^14, a` fragmentary elevation viewof the cable-'connecting the submarine and auxiliary boat, portions of the several walls there-vr 'as on line 15-15, Fig. 14; Y.,

Y similar toFigs. 6 and 11,V with portions in see-` *'15* tions, and more clearly illustrating detailsl i the auxiliary boat; y n v n Fig.A 17, a fragmentary transversesectional `Fig. 16,` an enlarged fragmentary "view ofthe stabilizing hitch between the cable and view thereofas' on line 17-17, Fig. 16; and i Fig. 18,21 fragmentary transverse sectional view thereof as on line 18-18, Fig. 16.

f Similar?V numerals refer tosimilar partsy throughout the drawings. Y

j `The-submarine indicated n includes, in-combination with the usualstrucf "ture, voperating machinery and controls of' av generallyat:v 10

submarine, Vwater-sealed walls forming a dock. 11 openingv outwardly preferably from i the -upper deck 12'f thesubmarineyand one of the-dock walls is provi-dedwith an opening 13 therein ycommunicating vwith the interior of one of the watertight compartments 14 of the submarine, and a. door 15 swinging into the compartment 14ris arranged Yforwatersealing the opening 13.

The upper deck plates 16 projectinwardly over the upper edges of the side and end walls of the dock'11, and flanges 17 are secured ito yfthe inwardly proj eating-portions of the plate 16, the upper surface of the flan'ges17 abut# n Vting againstVV the lowerl surfaces Vof Vthe plate .v 16,r and the flanges 17 projecting'inwardly v ybe'yon'dthe inner edges of theplates 16, form- V ing a rabloetedA seat Y18r for vthe Vauxiliary boat.

" The fiangesf17are. preferably legs of f 'angles, th'e'other legs 19'ofwhieh are secured to the side andend,V walls of the dock 11.

'i i At spaced intervals between the legs 17 and Y provide afjwater-sealedclosure for the` open# f fl9, clampingv seats 20 `areprovided, and will hereinafter be set-.forth` in vgreaterdetail.

. An auxiliary submarine boat,21fis ar?.y

ranged kto be secured in the dock 11, and to,

f ing thereof.

SealingV flanges y22 extend'outwardly prefa,Y 'erably'V from v`the' intersection of the upper edges of the hullV 23 and the outer edges of the deck plates 24 of the auxiliary boat and l* A sealing gasket fthe outwardly-,extending :sealing langes22 are arranged to overlap the inwardly extend-` ing dock ilanges17.'v 'y v i 25 preferablyof resilient ymaterial such as rubber, is carried on the up-y Y `per vsurface of the'doek flanges 17 'and is arranged to. be compressed against lthe lower surfacesofthe sealing flanges 22 to provide a I water-sealed vclosure for? the upper .opening of the'dock.

Improved m'eansfor effecting thiswaterfY sealedl closure includey internally Y* threaded sleeves 26 spaced within theauxiliary boat'21 at intervals corresponding with the intervals of the clamping, seats 20 attheupper redges ofthe dook. y' Y A screw 27 is screwed ineach of the sleeves 26, the `v-axesof the sleeve-'being preferably angled upwardly, and the outer end 28 of eachscrew extending outwardly and upward- .ly from the hull 23 of the auxiliary boat and adapted for clamping and' sealing abutment interior of the auxiliary Vboat as by means `of Y 'Y hand wheels 30 provided atfthe inner ends of.

ymay include a frame 33 secured to the rear wall 34 of the .submarine .conning tower 35,V and the frame 33 is preferablyformed of shaped plate 'material provided vwith ,verti- L :dockingvgfofy the auxiliary boat 21 inthe dock 11, .the submarine is vprovidedwith a'yieldingbumper .32, which Vends l28 ioff` they s crewsarepref- I cally extending outwardlyopening `Vfwalls A 36 and 36.y f- 1 Bumperplates `37 and .-37. are yiel'dingly secured upon the V walls 36 and 36 respecf tively, as bymeans vof headed bolts-38 the ends of which extend outwardly` throughv suitable aperturesv inthe plates 36v and 36 4and throughcompression'springs 39 and are f then secured inthe bumper` plates 37 and 37', whereby a yielding-V bumper is providedy lfor f the prow, of-,the auxiliaryl boat r21, for 'use inv dockingL the` `auxiliary boatinfthe dock 11 of the'subm'arine upon thereturn of the auxscribed in greater detail. i

liliaryboat'to the submarine from anl independent mission, as will hereinafter''be de- For facilitatingreleasing of `theauxiliary `submarine boat from the dock 11, a lplurality fof jack screw seats 40 are secured to the bottom wall of the dock'beneath'the position of the keel 41gfof Vthefauxiliary boatwhenthek lsame is secured in the dockg'and plurality of jack screws 42farescrewed'in jack nuts 43 mounted within thefauxiliaryboatg'and the outer-end 44 of each'jack screw 42'extends outwardly fromand belowk the keel. of

the auxiliary boat and is preferably in the shape of an'enlarged spherical head arranged l*to'fit in a suitable spherical socket in itsfcoy operating `jack 'seat' 40.V The inner end of so against the suitably angled abutment sur-1: lfaces 29' ofthe clampingl seats 20 whenvthe n 'screws 27 are screwedoutwardly vfrom the for -turnin g the screw.

' Nifreriea 'each iiaclrscrew 42 within the auxiliary vcboat' is provided with a suit-able hand -Wheel45 inwardly opening water-scalino` man `hole --Lloor 46 locatedy adjacent the door 15 when the auxiliary'boat 2l 'isdoclred in the submarine. Y p

The upper deckA 240i the auxiliary boat is ylikewise provided with a watersealing1nan hole door 47, and suitable glass covered water-sealed port holes 48 are-provided in "the Vhull 23 of the auxiliary boat.

` `the submarine interior, and the inner -endv cation through one side of the hull A23'to and through the upper deck thereof, and a valve 50 is provided in the conduit 49 for opening and closing the conduit from lwith-- in `the boat 21.

The auxiliary boat 2l is provided with a rudder 51 controllable from within the boat and a propeller 52 operated as by an electric motor and storage battery mounted in a yusual manner Vwithin the auxiliary boat.

A wa-ter conduit 53 communicates from the dock l1 to any desired water pump not shown within the submarine.

The auxiliary boat 2l associated as atoren said with the submarine 10, is capable of being :carried by the submarine in its maneuvers, of being released therefrom, of

carrying out a-n independent mission, vand of being redoclred therein, as will hereinafter beset forth 1n greater detail.

For increasing theco-operative abilities :of the auxiliary boat .and submarine, they are connected with each other by` an eX- tensible and retractable connecting member,

indicated generally at 54, the A.upper end of which is releasably secured to .the auxiliary boat, and which passes through a water-seal;

ing opening,'indicated `generally at 55, into A fot which isl .there connected with means, in-

dicated generally at 56, for extending and Y retracting theconnecting member 54.

The extensible and'retractable connecting A member 54 is preferablyv in 4the form of a composite cable which preferably includes a :steel cable 5'?, a plurality of conduits 58, and a plurality oi electrical conductor cables 59,v all embedded in suitable resilient materialSO,

and engirdled first by a flexible metallic sheath (il then by a water prooi covering 62 about the sheath l and then by a wire wrappingp about the sheath G2.

The upper end of .thev steel cable 57 diverges 'from the composite cable 54 as'at 64,

and entends therefrom a substantial distance ;Y

and the `extremity 65 of the steel cable 57 is securedto a metallic releasing connector 66, the Asupper end .ot which is preferably square in cross section and. tits' rinto a downwardly opening square aperture provided in the` auxiii-ary lboaft keel at vthe yerticalfaxlisio bu'oy- A connecting screw '67 extends from the interior ottheauniilliary iboat`12l .into -lthe square aperture and is' adapted stol lbe screwed finto a Asuitably threaded aperture 'Y1-in the reing screw 67 I'extends lwithin the auxiliary *for 'turning 4the -same to :secure :or release the A by-pass conduit 49 provides a communn cableconnector''. y Y* Thesdoelr lll )is prelierably providedwith a of which isprovidedithe watersealing-open ing v^1t',hrough lwhich theconrposite--oonnecting cable 54 passes tothe submarine anterior.

includes a tube 72 depending-*from the `=bot" tom wall of the Isump l71,#-a-nd` provided ywith a `stu-fling'fboX 73 iat its 'upper end and la stuif- -ing box 254 at its lower end, and through central openings in each of whichtheloable con-l nectingmember 54=extends Intermediate the stuingboxes'and74, A

A-a` gate valve 75 'is provided 'tor closing the opening -through lith-e tube 72'iif Jthe cable connecting ineiirber 541sliould accidentally ibrealz.

4A screw pressure pump 76 likewise V"communicates with the interior ofrtheltubebeltween the kstu-iiinfg bones S73 land '74a11d is arranged to provide -an-oill orlgreaseseal about the cable 54 passing therethrough.

For -vmafuitai-ning thealinement of the cable -'54 as litv passes Athroughlthev wazterse'alrngopenbetween yeach Vsetfof pulley grooves lonvthe` plane through thepulley afres-farealined with the-openingslof the studi-ng boites yarndvfll.

A rotatable drum fr" 8 `iis operatively mount-` i led with-in "the compartment 14 vandi` .the cable connecting member `54vis wrapped in a suitably di-inens-ioned helical 'groove 79 `on the outer surface oi" the drum, thelowereirtremity 8O vof the'steel cable 57 being rigidly 'secured to oneend 8l ofthehoistingdrum;` The conduits 58 are preferably two :inhnumber and arranged for delivering'a-supply ogf'ffres'h-air from =the submarine lto the auxiliary vboat, or vice versa; and the lower `erttremitgv 8210i one of the conduits 58 may be connected Awith a valve 83 secu-red on one-ofthe ends of the drum 78,:-and that conduit'58 may lbean'air return line. f

rl`h`e drum 78 is'mountedon andfofrrotal tion' with, atubula'r -a-Xle '84,and'the'1lower leX-i itremity 85 of the othercond-uit 58iisconnected-v c ,80' i centrally located sump 711, inthe bottoni wall .5915' "making a vclosure about the tube 91.,

` 1'Theouterendofgthe tube 91 is provided l `throughanimprovedcoupling 86 andthe pipe 1ine87 `having a suitable valvev 88 therein, to

Y an -air pump not shown, and this conduit 5,8

i l. ma thus bei an airde1ivery1ihe-; Y a p Y lhe improved coupling `86 includes@ nip-.

ple 89 removably secured in one end ofthe i l tubular axle 84', the vprotruding end 90of the 1., nipple being vconnected with thefextreinity 85fof one of the cable conduits as aforesaid..

` `V`Olne threadedend o ,f a tube -91 isscrewed .intheouter endof the nipple 89 andsecured againstrotation as by'means ofk a key 972.

l A flange sleeve 93is slidably mountedl on Vthe tube 91, and theinnerY end of the flange sleeve is ,provided with aistuliingbox, for

with an outwardly .extendingflange 95, the inner face of which Vabuts against lthe outer face of anoutwardly extending flange 96 of the-'flange sleeve 93.Ak v

The'outer face ofthe flange abutsagainst 1 yf r v 2511s a o esaid -v theoutwardly extending inner face of an L flange-97 which ,is connected to the 'valve 88 The L flange `97 includes a longitudinally extending outer -leg internally threaded and V of thegtube 91.

screwed uponV externalthreads on the outer peripheral' face of. the'flange sleeve 93.

'Oil grooves 98' are preferably provided in .the outwardly extending faces of the flange v The .tube 91 .rotates withbthe .axle 84:.,Vand

bearing brackets 99, the lower ends'of' which lit in longitudinal guide rails 100EL andz100b theV remaining parts of the coupling are stationary; T l f The-endsof the axle 84' are journalled in forlongitudinally sliding they drum yto mainy 40' tain the winding or ,unwindingcomposite ca- .ble Y 54 in alinement Qwith the openings through the pulleysFFand 77a.

i p ing the cablel in alinement vas aforesaid.

L The velectrical cables'- 59 may be three vin number,onevfor providingatelephone cirycuit,fanotherfor providing an electric light circuit and lanother for lproviding a bell or othergsignal'cirouit. f y Y Thez'cables 59 mayextend intoand through j 'f the tubular axlevSfj 'and terminate atfthe axle K end opposite the coupling 8.6 at an electrical f -G0 tionfor completing the desired circuits.

:distributor of any Vwell known construc` Beyond the divergence of the steel cable 57` therefrom, the upper end of the cable' 54Cv rissecuredwithina piston sleeve106 which is slidably fitted within a cylinder 107 extending upwardly from aicorrfe'sponding aperture.

in the bottomof thehull 23. 'f

rlhe upper end of the cable 54is V108 sealedV entirelyaround its inner periphy secluredrl.` within the sleeve 106jin such a way as to pro` vide a water-tight closure forthe opening inu 7o the-sleeve 106, as by meansof a ring flange' ery totheouterperip'hery of the jcable 54:, n

and sealedeentirely around its outer periph-- Aery wit,"l the'interior'surface of the -sleeve `j `The upper end: of the sleeve106 isfprovided 'with a packing 'closure V'109 through which passthe several conduits 58and conductors 59, Ythe joints between the conduits and conductors. and the packing closure being wa.-

A stopv ring flange 110 is provided adjacent the `upper end of thecylinder 107, and the sleeve 106 may riseand fall inthe cylinder 107 when the auxiliary`boatf21-is rolling, there being a suitable amount `of slack provided in the conduits and conductorsV above the closure 109 for thispurpose y n The [cable 54 is sufficiently rigid to maintain the sleeve within the cylinder when the boat 21 is secured within the dock 11.

Agate valve 111 is provided at the .upper end .of the cylinder 107: for closing the openingof the same when the sleeve 106 has been .5 1.droppedfroin thecylinder.V

VThe conduits 58 fand, conductors 59 extend throughgsuitable openings in the cylinder 1.07V

into the interior of. the auxiliary boat 21,

where the conductors may thenbe connected. with the desired electrical Vapparatus'and supplyand f where-the conduits may act as return air ducts as aforesaid. Y

A stabilizing hitch indicated generally at V 112 is provided between the cable 57 andthe 4 auxiliary boat 21, for assisting in maintainv 'ing thejauxiliary boat on an even keel when thesubmarine is submerged and the auxiliaryA tions thebuoyancy yofV the auxiliary boat .Y tends to",A stretch the :cable between vitsV con-.

nection within the submarine and its connec- .boatis rising therefrom. 'Under such condi- Y tionl with the auxiliaryboat bythe .connecvtor 66.

',The'aabnizing hitch includes a tubular piston strut 113 slidable up andy down withinV a water-sealed sleeve 114: inthe bottom of the submarine hull, the upper end of the piston strut 113 being within the interior of the auxiliary boat and being provided with strut, and the lower end of the strut beingV l located outside off and below the auxiliary boat hull. f c

, A swinging hook'116'is secured to the floor l of the auxiliary boat and arranged to re leasably secure the handle in the position illustratedin full linesinFig. y16,-whereb'y ;V

the piston strut 113y is extended itsv full length below the, bottom of the, auxiliary boat. Y

leoA va handle 115 forraising andlowerin'g the l.

' laterally from a slidable collar 121 through- At the lower end ofthe piston strut-311,3,fa t pair otjcooperating vjaws 117 and 11:7 arev pivotally mounted on` pivot ipins i118 and`r118' i respectively. l

The jaws 117 and 117 extend downwardly below the pins118 and 118- andare pro-f vided, respectively, at 'their lower'extreniities with- 'senii-cylindric notches 119 and 119 ar-A ranged to close about a pin 120 extending which the cable 57 exten-ds. Y

From the opposite side ,oftheV collar v121 a pivot bolt 122 extendslaterally and prot vides a pivotal. mounting for the lower ends ot' diagonal struts 123' and 123 extendingr upwardly therefrom' and provided at their upper ends, respectively, with UVhangers 124l and 124 longitudinally slidable, respectively, on tracks 125 and 125 dependingtrom the keel of the auxiliary boat.

The upper ends of the jaws 117 and 117' extend upwardly and inwardly abovev the pivot pins 118 and 118', respectively, for engagement in a neck between a'lower spherical extremity 126' and the body ot'a rod 127 slidable up and down within the tubularA strut 113. t

The upper end of the rod 127 is externally, threaded and screwed in internal threads provided in the upper end of the strut 113, and the rod 127 extends beyond the upper end ot the strut 113 and is provided with a-suit" able hand wheel 128 for turning to raise and lower the rod, whereby the aws 117z and 117 may be oscillated about the pivotv pinsV 118 and 118', respectively,v for openingandclos.-

, ing about the pin 120.

A swinging hook 129 depends from the lower surface ot the auxiliary boaty deck 24 for engagement when desired with the hand wheel 128 to maintain the tube strut 113 in elevated position as illustrated in full lines in Fig. 8.

Vcrtically depending stops 130 and 130' are provided, respectively, tor the'inner ends of the tracks 125 and 125 for limiting the inward travel ot the hangers 124 and 124.

For enabling disengagement of the hangers 124 and 124 from the auxiliary boat, the outer ends ot the tracks 125 and 125' terminate, respectively, some distance inside 'of the outer limit of travel of the hangers 124 and 124', and auxiliary tracks 131 and 131 are arranged for receiving, respectively, the

` hangers 124 and 124' beyond the ends ot the tracks 125 and 125. Y

The auxiliary tracks 131 and 131 are oscillatably mounted at their outer ends on Vhorizontal pivot pins 132 and 132', respectively, carried by the boat.

Inwardly spaced from the pivot pins 132 and 132', screws 133 and 133', respectively, are operatively mounted in threaded aperkeel of the auxiliary t netamente-Of thesrews 1.1313; atenei spectively, forfturning the screws, whereby the ,screws in ayebe. raised andL lowered, and.

the-auxiliarytracks-,131 andu131 may. be 4o\s.-.A cillated aboutthe .horizontal vpivqtsl` 132t and;

132', respectively, tor lowering or', raising; the inner eadsoftharacks 131 and 1.31::`1f1150M or out of-prolongationot the tracks 1.2.53 reseectvelyfl e i Accordingly, when the screws.. 133 and.133,. areelgevated,tha-hangers124 4 aadiei tiefster, Y

ported in any position ottheirtravelto yor v away from the strut 113, as nia-y beQdeters. minedby the raising-or lowering oftliastru,tr 113.

When the hitch 1112E asabovedescribed,i is. in the lowered positionl illustrated in,V Eifg, 16, it Operatesto keen the; auxiliary beat ou, 21'11- even. keel, by braeiesfthe keel lenen-adir. nally vagainst the taut cable. y

Then the* hitch, in the.. position illus-l trated-.vbvthedetand deshlin'esrn` lia lr6, 0f* by yfull lines-n; Elisa 6, and 11:, turning the screws-133an1d-,133 te lower t h,ern,` will; lover the nher-enlsfethe auxiliar-y trades 125 and 125' rwhereby thev hangers 124', and 124' will droptherefrom,

ing it, the jaws 117 and 117.' wilLbe, disen.;

will be entirely disengaged from. theairg# ili.ary,-boat. l l, Y Y For entirely releasing, the connection leetweeny the auxiliary; boat; andl the subina'rine', there remains only toA release the connecten-v 66 as. aforesaid, and to. drop *thel sleeve? 106: from the cylinder 107,; i he submarine1.().being submerged being connected as aforesaid with the auir-Ak iliary submarine boat 21 by therextensibe and retractable cable connecting member 54, and the auxiliaryV boat 21 beinlgsecuied; the. Clock 11V asYllstrated` in FeS- l., 5,126., 7. 8, 9, 10, 11, and 16 and. the closed: dock bei-ngy evacuated owat'er, the auxiliary boat may'` be manned by a part; of thesubmarines crew leaving the submarine through, the door 15' and entering. the auxiliary boat,V thrOLlgh, the` door 46. i ,y

Both doors 15. and 46 may-then be closefh, and the valve 5 0 may be opened permitting` entrance of water through 'they conduit into the -dock11,andthe vscrews be, withdrawn` troni engagement `with the seats 20, the jack screws 42 may be turned: tov raiserthe auxiliary boat and break itswaten-I sealedclosure witlrthe., dock,l whereby v vatei;v willrush into the dOGlS 11` and thenatural frio ' y the auxiliary buoyancy of the i auxiliary boat 21 vwill causeH Vittorise to the surface, the'cable connector 54 beingpaidoutfrom'the Vdrum 7 8 as the auxiliary boat rises,*andv the vhitch 112 :tend-`r Y ingpto keep'thej auxiliary 'boat on an evenkeel as aforesaid.

to the surface,fand? being` connected 4by the composite rcable 54 vwithV thesubmerged ysub-p` marinelO, the maneuvering, torpedoV fire, and other operations ofl the submarine, may- Y b el'controlled and Vdirected from the auxil-V iaryboatfV i* l Y *If it isV desired thatv they auxiliary `boat 21 perform ja.n"'independent mission, theconnector 66 l,and the hitch 112"are released `as 25y v Vdocledby bringingthe submarine further to the surface so that the dock l1 closes about e aforesaidfrom the Yauxiliary boat before the auxiliary has beenvrele'ased from the dock. f Afterethe auxiliary boat hascompleted its mission, the submarine may. arise to just be'- low the surface Vas illustratedinFig. 2, and move slowly ahead, whereby the auxiliary boat, moving at a faster speed may come up ,from thek rearl anddirect itsprow into the bumper, from which position it may be rethe auxiliary boat 21 from below.

Whenthe'auxiliary boat is'connected by" the cable-54, it may be redocked-either byV be- *ing drawn down to thesubmerged subma- Arnie, or by the'submarnerising tothe boat.`

VI claim:

1. A submarine, an auxiliary boat, an, ex-

tensible v'and retractable connecting f member e Y* between'the boat andfthe submarine, means operable roin'ivithin Ythe boatfor'detachingthe boat from the member, means inthe sub?,

K Y e ,extensionV andretraction-thereof. iboat thus having risen `from Within the boat.

the.submarine,V avv water seal on the e submarine about the connecting member, and means'y for moving the extendingy and retraetingmeans so thaty the connectingv member will Y always bealined with the Vwater seal during 5. A submarine, an auxiliary b'oat,a'nex`l ten'sible and retractable connecting, member* n between the V'boat' and ,theg submarine, anda 1 stabilizing hitch' operating. V.between the connecting ,member andtheboat 6. A submarine, an lauxiliary b0`ajt,.an extensible andl retractable connecting member betweenthe boat and the submarine, a stabilizing hitchV operating between the connect- 75 i andadjustable Y ing member fand the boat, and ymeans operable from within the boat for detaching the hitch from the boat.l l 7. A submarine,ran auxiliary boat, an extensible and retractable connecting member e between tlie boat and the submarine, a stabilizing hitch operating'between the conneetoperatingl between the connecting member .and the boat. 'i .f .j vIn testimony lthat I claim the above, I have hereuntosubscribed my name.v Y

EDWARD@ I siioiiinixiin ,Y

marine orex'tending and retractingv the conf necting'member into andfout; of thefsubmafV rine, and a water sealV on theV submarine about the connecting member, andthe connecting.

member including an electrical v conductor `for connect-ing electrical i-apparatus inthe boat and electrical Vapparatus inthe sub1na-,

rine,` A l Y 2. A submarine, aidocl; y iliary boat, an extensible and retractable connecting member between therboat and they submarine, and means 'facilitating 'maneuv vering the boat intoand eutl of the dock, Aincluding a yielding bumper extending'outwardlyfrom the submarine."y

Y 3, yA submarine, `a, dock'therein, Vvan aux? iliary boat, an extensible and retractable conH necting member` between the boat andthe submarine, and means `facilitatiiig maneuvertherein', an Vaux'- ingthe boatinto and out of the dock, in- Y cluding a yielding Vv bumper extending outwardlyffrom the submarine. j y

4: A submarine, Van auxiliary boat, an extensibleand retractable connecting member between ltheboat and the submarine, means in the lsubmarine'iter extending and retracting the connecting member'into and'out of iio 

